/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servletAsm;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import sessionbean.AssignmentFacadeLocal;
import sessionbean.StudentResultFacadeLocal;
import supportlearning.entities.Assignment;
import supportlearning.entities.StudentResult;

/**
 *
 * @author Huy
 */
public class ServletAsm extends HttpServlet {

    @EJB
    private StudentResultFacadeLocal studentResultFacade;
    @EJB
    private AssignmentFacadeLocal assignmentFacade;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            String action = request.getParameter("action");
            if (action.equals("DetailsSub")) {
                int id = Integer.parseInt(request.getParameter("txtid"));
                List<Assignment> list = assignmentFacade.selectAssignment(id);
                request.setAttribute("Subid", id);
                request.setAttribute("INFOASM", list);
                request.getRequestDispatcher("subjectdetails.jsp").forward(request, response);
            } else if (action.equals("Delete")) {
                int id = Integer.parseInt(request.getParameter("asmid"));
                assignmentFacade.RemoveAsm(id);
                response.sendRedirect("ServletSub");
            } else if (action.equals("Mark")) {
                int id = Integer.parseInt(request.getParameter("asmid"));
                List<StudentResult> listStudentrs = studentResultFacade.MarkbyStaff(id);
                request.setAttribute("liststu", listStudentrs);
                request.getRequestDispatcher("MarkStuByStaff.jsp").forward(request, response);
            } else if (action.equals("Save")) {
                String StudentID = request.getParameter("txtstuid");
                int assid = Integer.parseInt(request.getParameter("txtassid"));
                double mark = Double.valueOf(request.getParameter("txtmark"));
                String note = request.getParameter("txtnote");
                StudentResult rsobj = studentResultFacade.findbyStuID(StudentID, assid);
                rsobj.setMark(mark);
                rsobj.setNotes(note);
                studentResultFacade.edit(rsobj);
                response.sendRedirect("ServletAsm?action=Mark&asmid="+assid);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
